12 Volt Automotive Relays

Automotive relays are for use in 12 volt electrical systems. Relays are used when you need to switch higher currents than a switch can handle, or when you want to isolate an electrical circuit. Our relays have either 5 contacts or 4 contacts. Relays with 5 contacts are called Changeover Relays, and are capable of switching between two separate output circuits - a normally open circuit and a normally closed circuit. Similar to a single pole single throw ON-ON switch, these relays can 'change over' from one circuit to another, and can be used to either turn a circuit on, or turn a circuit off. We carry relays for different amperage ratings. Our 30 amp relay is our most economical. It is a 5 terminal change over relay with a plastic housing and built in mounting tab. Our 40 amp relay is our most popular 5 pole relay and features a removable metal mounting tab. Our 50 amp relays also come in sealed versions with a resistor or diode across the relay coil. Our 60 amp relay offers the highest switching capacity in the standard Bosch 5 pin layout. Even higher power switching is available in our 4 pole 80 amp relay and 200 amp relay. We also carry a very popular pre-wired relay socket. The sockets can also be locked together if needed. For an overview of how a relay operates, please watch our instructional video.

Sale

30 Amp Automotive Relay with Mounting Tab. Capable of switching up to 30 amps. Normally closed terminals can switch 20 amps. A great general purpose automotive power relay. 12 volt coil....
Quantity Price Ea.
1 - 4$4.53
5 - 24$3.65
25 + $3.28
$4.08
You save:
$0.45
Sale

40 Amp Automotive Relay with Metal Tab - 5 terminal 12 volt 40 amp change-over automotive relay capable of either switching a circuit on (40 amps max) or off (30 amps max)....

Quantity Price Ea.
1 - 4$5.16
5 - 24$4.05
25 + $3.65
$4.65
You save:
$0.52
Sale

Relay socket is pre-wired with 5 color-coded wire leads.  Socket is a molded base 5 pole design.  Fits all of our 40 amp, 50 amp, and 60 amp relays.  The three power leads are 14...

Quantity Price Ea.
1 - 4$5.47
5 - 24$4.27
25 + $3.85
$4.93
You save:
$0.55
Sale

50 amp Automotive Relay - Five terminal automotive relay capable of switching up to 50 amps. Normally closed terminals can switch 40 amps. The relay fits a standard Bosch style 5 terminal layout. 12...
Quantity Price Ea.
1 - 4$8.61
5 - 24$7.94
25 + $7.49
$7.75
You save:
$0.86
Sale

50 amp Sealed Automotive Relay - Five terminal fully sealed automotive relay is capable of switching up to 50 amps. Normally closed terminals can switch 30 amps. Fully sealed design is perfect for...
Quantity Price Ea.
1 - 4$12.75
5 - 24$12.03
25 + $11.56
$11.48
You save:
$1.28
Sale

50 amp Sealed Automotive Relay With Diode - Five terminal fully sealed automotive relay is capable of switching up to 50 amps. Normally closed terminals can switch 30 amps. Fully sealed design and...
Quantity Price Ea.
1 - 4$14.38
5 - 24$13.37
25 + $12.69
$12.94
You save:
$1.44
Sale

40/60 amp Automotive Relay with Mounting Tab - Five terminal automotive relay with integrated mounting tab. Capable of switching up to 60 amps. Normally closed terminals can switch 40 amps. High...

Quantity Price Ea.
1 - 4$6.05
5 - 24$5.45
25 + $4.85
$5.45
You save:
$0.61
Sale

70 Amp High Power 12 Volt Relay - 70 Amps of continuous current in a compact package. This powerhouse relay requires special 0.375'' terminals for the power connections.  Two of these terminals...

Quantity Price Ea.
1 - 2$16.00
3 - 9$14.40
10 + $12.80
$14.40
You save:
$1.60
Sale

80 Amp 12 Volt Relay - High power surface mount relay capable of switching up to 80 amps at 12 volts DC. Power connections utilize 5/16" ring terminals or lugs. Relay coil connections are #10...
Quantity Price Ea.
1 - 3$40.76
4 - 9$32.69
10 + $27.23
$36.68
You save:
$4.08
Sale

200 Amp 12 Volt High Power Relay - Hi power 12 volt relay capable of switching up to 200 amps. Great relay for circuit or battery isolation, or any application where very high currents need to be...
Quantity Price Ea.
1 - 3$116.58
4 - 9$91.24
10 + $82.13
$104.92
You save:
$11.66